Seiko Cal. 4521 - 475

The Seiko 4521-475 represents an important milestone in Seiko's 1975 lineup. With its 18mm lug width and 15.2mm profile, it sits comfortably on most wrists. [seikata-wm-1f3346bcae3a]

Also known as: Bellmatic, World Timer

Specifications

Movement

Solar

Case Material

Titanium

Case Width

42mm

Case Thickness

15.2mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

80m

Dial Color

Cream

Jewels

24j

Frequency

21,600 bph

Power Reserve

54 hours

Year

1975

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